Whitehall officials proposed the presence of Argentine officials at a meeting of the committee which is organising the funeral, code-named Operation True Blue. The Telegraph understands that Lady Thatcher’s children, Sir Mark and Carol, believe that such protocol would be “inappropriate”. Sir Mark, who returned to Britain from Barbados on Tuesday, will attend a meeting of the Operation True Blue committee tomorrow to represent his mother’s interests. The committee, which is meeting on a daily basis, is planning to make the liberation of the Falkland Islands a central part of the ceremonial funeral on Wednesday.